You could do it "in theory" but it would require case modding (to get the mechanical keyswitches to fit in the plate/case) rewiring (wiring the new switches in where the old ones were) as well as more switches, and too much time and patience. It would probably be easier to just start fresh with a custom PCB, and a hunk of aluminium, though.
Ekaros is right, due to the completely different technology. your best bet is to petition corsair to be smarter in the future.